#jzb-left-panel {
    width: 25em;
    border-right: var(--border-ctrl);

    flex-direction: column;
}

#jzb-left-panel > .sh-scroll-panel {
    flex-grow: 1;
}

#jzb-main {
    flex-grow: 1;
    border-left: var(--border-ctrl);
    flex-direction: column;
}